Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [RFC][Update 2][PATCH 3/4] sysfs: Functions for adding/removing symlinks to/from attribute groups | Date | Mon, 21 Jan 2013 23:41:35 +0100 |
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On Monday, January 21, 2013 12:58:20 PM Greg Kroah-Hartman wrote: > On Mon, Jan 21, 2013 at 02:06:27PM +0100, Rafael J. Wysocki wrote: > > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > > > > The most convenient way to expose ACPI power resources lists of a > > device is to put symbolic links to sysfs directories representing > > those resources into special attribute groups in the device's sysfs > > directory. For this purpose, it is necessary to be able to add > > symbolic links to attribute groups. > > > > For this reason, add sysfs helper functions for adding/removing > > symbolic links to/from attribute groups, sysfs_add_link_to_group() > > and sysfs_remove_link_from_group(), respectively. > > Those functions are fine, but why sysfs_add_link()?
Do you mean the helper? I couldn't invent a better name. :-)
Would sysfs_create_link_sd() be better?
> It looks identical to sysfs_create_link(), why would you call one and not > the other?
Because sysfs_create_link() takes a kobject as the first argument and I want a sysfs_dirent.
> Why would anything outside of the sysfs core code ever have a pointer to a > sysfs_dirent?
I don't see a reason and that sysfs_add_link() really is internal (it shouldn't be exported then, yes).
I need to make a link from an attribute group under a kobject and not from the kobject itself, that's all.
Thanks, Rafael
-- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center.
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